Last October I posted a plea for brick numbers needed for a 43? diameter oven. In particular, I asked for clarification of the numbers needed for the dome ? the FB materials list for a 42? oven stipulates 180 but does not say whether they are half bricks or whole.

Since that time, I?ve considered various members? views and projections of dome quantities (esp dmun?s CAD drawings), and done some mathematical modelling of my own. All of this leads me to believe that the ?180 firebricks? specified in the FB materials list relates to half bricks, rather than whole ones, as whatever method I employ to estimate whole brick numbers, I end up with more or less half of the 180 stipulated. And this is for a 43? oven, rather than a 42? one.

You will appreciate that at around $4 per brick, I really don?t want to get too many more bricks than I require, and I am curious to know how the figure of 180 was derived.

James ? anyone ? can you shed some light on this?

Cheers, Paul.

Since that time, I?ve considered various members? views and projections of dome quantities (esp dmun?s CAD drawings), and done some mathematical modelling of my own. All of this leads me to believe that the ?180 firebricks? specified in the FB materials list relates to half bricks, rather than whole ones, as whatever method I employ to estimate whole brick numbers, I end up with more or less half of the 180 stipulated. And this is for a 43? oven, rather than a 42? one.

You will appreciate that at around $4 per brick, I really don?t want to get too many more bricks than I require, and I am curious to know how the figure of 180 was derived.

James ? anyone ? can you shed some light on this?

Cheers, Paul.

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